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#include "epoll_server.h"
#include <netdb.h>
#include <stdlib.h>
#include <sys/epoll.h>
#include <sys/socket.h>
#include <unistd.h>
#include "connection.h"
#include "string.h"
int create_and_bind(struct addrinfo *addrinfo)
{
for (struct addrinfo *info = addrinfo; info != NULL; info = info->ai_next)
{
int sock_fd =
socket(info->ai_family, info->ai_socktype, info->ai_protocol);
if (sock_fd != -1)
{
int feur = bind(sock_fd, info->ai_addr, info->ai_addrlen);
if (feur != -1)
{
return sock_fd;
}
else
{
close(sock_fd);
}
}
}
exit(1);
}
int prepare_socket(const char *ip, const char *port)
{
struct addrinfo hints;
memset(&hints, 0, sizeof(hints));
struct addrinfo *addrinfo;
int e = getaddrinfo(ip, port, &hints, &addrinfo);
if (e != 0)
{
exit(1);
}
e = create_and_bind(addrinfo);
int e2 = listen(e, 1000);
freeaddrinfo(addrinfo);
if (e2 == -1)
{
close(e);
exit(1);
}
return e;
}
struct connection_t *accept_client(int epoll_instance, int server_socket,
struct connection_t *connection)
{
int e = accept(server_socket, NULL, 0);
if (e == -1)
{
close(server_socket);
exit(1);
}
struct epoll_event tmp;
tmp.events = EPOLLIN;
tmp.data.fd = e;
int er = epoll_ctl(epoll_instance, EPOLL_CTL_ADD, e, &tmp);
if (er == -1)
{
close(server_socket);
close(e);
exit(1);
}
return add_client(connection, e);
}
int main(int argc, char **argv)
{
if (argc != 3)
{
exit(1);
}
int epoll_instance = epoll_create1(0);
if (epoll_instance == -1)
{
exit(1);
}
int e = prepare_socket(argv[1], argv[2]);
struct connection_t *co = NULL;
struct epoll_event tmp;
tmp.events = EPOLLIN;
tmp.data.fd = e;
if (epoll_ctl(epoll_instance, EPOLL_CTL_ADD, e, &tmp) == -1)
{
close(e);
exit(1);
}
while (1)
{
struct epoll_event elist[MAX_EVENTS];
int info = epoll_wait(epoll_instance, elist, MAX_EVENTS, -1);
if (info == -1)
{
exit(1);
}
for (int i = 0; i < info; i++)
{
int fd = elist[i].data.fd;
if (fd == e)
{
co = accept_client(epoll_instance, e, co);
}
else
{
char buf[100] = { 0 };
int info1 = recv(fd, buf, 100, 0);
if (info1 < 1)
{
co = remove_client(co, fd);
close(fd);
}
else
{
struct connection_t *tmp = co;
while (tmp != NULL)
{
send(tmp->client_socket, buf, info1, 0);
tmp = tmp->next;
}
}
}
}
}
}
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